package com.cb.ucenterservice.mapper;

import com.cb.ucenterservice.entity.UcenterMember;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;

/**
 * <p>
 * 会员表 Mapper 接口
 * </p>
 *
 * @author Cebb
 * @since 2020-06-27
 */
public interface UcenterMemberMapper extends BaseMapper<UcenterMember> {

    /**
     * 根据日期查询当天注册人数
     * @param day
     * 查询日期
     * @return
     * 注册人数
     */
    Integer countRegister(String day);
}
